I made this baby sweater (I haven't mailed it yet) for a friend of my oldest daughter who just had a baby boy 2 weeks ago. It was a very easy pattern.
I found here. http://www.petitepurls.com/basics/b_garterhood.html
I followed the directions except for knitting front. I knitted both sides of the front after the split. To me it's easier to knit both sides at once and then they are even.
Here's a photo of my knitting. You just need to attach another yarn to knit with. I used the other end of the skein that I knitting from. I also try to knit both sleeves at one time too.
Since this is a sweater for a new baby I chose to use an acrylic yarn so there is no allergic reactions from yarn. Acrylic can be thrown in the washer. The yarn I used was Caron Simply Soft Eco. It was nice to work with.